var pi = 3.14159265358979324;// 圆周率
var a = 6378245.0;// WGS 长轴半径
var ee = 0.00669342162296594323;// WGS 偏心率的平方
var localHashMap = {};
var createtimel;

function outofChina(lat, lon) {
        if (lon < 72.004 || lon > 137.8347)
            return true;
        if (lat < 0.8293 || lat > 55.8271)
            return true;
        return false;
};
    

function transformLat(x, y) {
        var ret = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * Math.sqrt(Math.abs(x));
        ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;
        ret += (20.0 * Math.sin(y * pi) + 40.0 * Math.sin(y / 3.0 * pi)) * 2.0 / 3.0;
        ret += (160.0 * Math.sin(y / 12.0 * pi) + 320 * Math.sin(y * pi / 30.0)) * 2.0 / 3.0;
        return ret;
};
    

function transformLon(x, y) {
        var ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1* Math.sqrt(Math.abs(x));
        ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;
        ret += (20.0 * Math.sin(x * pi) + 40.0 * Math.sin(x / 3.0 * pi)) * 2.0 / 3.0;
        ret += (150.0 * Math.sin(x / 12.0 * pi) + 300.0 * Math.sin(x / 30.0
                * pi)) * 2.0 / 3.0;
        return ret;
    };
    




function transform(lon,lat) {
    
        //var localHashMap = {};
        if (outofChina(lat, lon)) {
            localHashMap.lng = lon;
            localHashMap.lat = lat;
            return localHashMap;
        }
        var dLat = transformLat(lon - 105.0, lat - 35.0);
        var dLon = transformLon(lon - 105.0, lat - 35.0);
        var radLat = lat / 180.0 * pi;
        var magic = Math.sin(radLat);
        magic = 1 - ee * magic * magic;
        var sqrtMagic = Math.sqrt(magic);
        dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);
        dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi);
        var mgLat = lat + dLat;
        var mgLon = lon + dLon;
        localHashMap.lng = mgLon;
        localHashMap.lat = mgLat;
        return localHashMap;
        
};
    



function gcj2wgs(lon, lat) {
    
    
    
    
        //var localHashMap = {};
        if (outofChina(lat, lon)) {
            localHashMap.lng = lon;
            localHashMap.lat = lat;
            return localHashMap;
        }
        var dLat = transformLat(lon - 105.0, lat - 35.0);
        var dLon = transformLon(lon - 105.0, lat - 35.0);
        var radLat = lat / 180.0 * pi;
        var magic = Math.sin(radLat);
        magic = 1 - ee * magic * magic;
        var sqrtMagic = Math.sqrt(magic);
        dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);
        dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi);
        var lontitude = lon - dLon;
        var latitude = lat - dLat;
        localHashMap.lng = lontitude;
        localHashMap.lat = latitude;
        return localHashMap;
};





function count(lat1, lng1, lat2, lng2, type)
{

    var x =(lng2-lng1)*111319.5*Math.cos((lat2+lat1)/114.6);
    var y = (lat2-lat1)*111319.5;

    var dis = Math.sqrt(x*x+y*y);

    var par = 30;
    if(2 == type){
        par = 300;
    }else if(3 == type){
        par = 100;
    }
    
    if(par < dis){
        return true;
    }
    return false;
};





function gettime(time)
{
    
    var times = time.split(" ");
    var time1 = times[0].split("-");
    var time2 = times[1].split(":");
    var d=new Date(time1[0], time1[1]-1, time1[2], time2[0], time2[1], time2[2]);
    var localTime = d.getTime(); 
    var offset =(-d.getTimezoneOffset())/60;    
    var utcTime = localTime + (3600000*offset); 
    var nd = new Date(utcTime); 
    var createtimel = nd.getFullYear()+"-"+setNum(nd.getMonth()+1)+"-"+setNum(nd.getDate())+" "+setNum(nd.getHours())+":"+setNum(nd.getMinutes())+":"+setNum(nd.getSeconds());
    return createtimel;
}


function setNum(s){
    return (parseInt(s, 10)>9) ? s : '0'+s;
}
